Are you ready for the zombie apocalypse? You had better be. AMC's The Walking Dead is one of the most popular programmes in cable TV history, and it kicks off a new series Sunday night. And it's pretty educational.

"The rust of memory" is really the perfect way to describe nostalgia. While, admittedly, it can be pleasant to have some whimsical understanding of the past, I would ultimately argue that nostalgia is a negative that causes people sorrow in their present (regardless of whether this sorrow is justifiable).